Thermally reversible cross-linked poly(ether-urethane)s
Cross-linked poly(ether-urethane)s were prepared by Diels-Alder (DA) reaction of the furan-containing poly(ether-urethane) to bismaleimides and showed thermal reversibility evidenced by differential scanning calorimetry and attenuated total reflectance in conjunction with Fourier transform infrared...
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| Format: | Article |
| Language: | English |
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Budapest University of Technology and Economics
2013-07-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0004377&mi=cd |
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| author | V. Gaina C. Gaina O. Ursache C. D. Varganici |
| author_facet | V. Gaina C. Gaina O. Ursache C. D. Varganici |
| author_sort | V. Gaina |
| collection | DOAJ |
| description | Cross-linked poly(ether-urethane)s were prepared by Diels-Alder (DA) reaction of the furan-containing poly(ether-urethane) to bismaleimides and showed thermal reversibility evidenced by differential scanning calorimetry and attenuated total reflectance in conjunction with Fourier transform infrared spectroscopy (ATR-FTIR). The furan-containing poly(ether-urethane)s were synthesized by the polyaddition reaction of 1,6-hexamethylene diisocyanate (HMDI) or 4,4'- dibenzyl diisocyanate (DBDI) to poly(tetramethylene ether) glycol (PTMEG having Mn = 250, 650, 1000, 1500 and 2000) and 2-[N,N-bis(2-methyl-2-hydroxyethyl)amino]furfuryl as chain extender by the solution prepolymer method. The molar ratio of isocyanate: PTMEG:chain extender varied from 2:1:1 to 4:1:3, which produces a molar concentration of furyl group ranging between 3.65•10–4 and 1.25•10–3 mol/g. |
| format | Article |
| id | doaj-art-8e3405c98d064ec6b60cddcee2584482 |
| institution | DOAJ |
| issn | 1788-618X |
| language | English |
| publishDate | 2013-07-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-8e3405c98d064ec6b60cddcee25844822025-08-20T02:52:31ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2013-07-017763665010.3144/expresspolymlett.2013.60Thermally reversible cross-linked poly(ether-urethane)sV. GainaC. GainaO. UrsacheC. D. VarganiciCross-linked poly(ether-urethane)s were prepared by Diels-Alder (DA) reaction of the furan-containing poly(ether-urethane) to bismaleimides and showed thermal reversibility evidenced by differential scanning calorimetry and attenuated total reflectance in conjunction with Fourier transform infrared spectroscopy (ATR-FTIR). The furan-containing poly(ether-urethane)s were synthesized by the polyaddition reaction of 1,6-hexamethylene diisocyanate (HMDI) or 4,4'- dibenzyl diisocyanate (DBDI) to poly(tetramethylene ether) glycol (PTMEG having Mn = 250, 650, 1000, 1500 and 2000) and 2-[N,N-bis(2-methyl-2-hydroxyethyl)amino]furfuryl as chain extender by the solution prepolymer method. The molar ratio of isocyanate: PTMEG:chain extender varied from 2:1:1 to 4:1:3, which produces a molar concentration of furyl group ranging between 3.65•10–4 and 1.25•10–3 mol/g.http://www.expresspolymlett.com/letolt.php?file=EPL-0004377&mi=cdThermal propertiespolyurethanesDiels-Alder reaction |
| spellingShingle | V. Gaina C. Gaina O. Ursache C. D. Varganici Thermally reversible cross-linked poly(ether-urethane)s eXPRESS Polymer Letters Thermal properties polyurethanes Diels-Alder reaction |
| title | Thermally reversible cross-linked poly(ether-urethane)s |
| title_full | Thermally reversible cross-linked poly(ether-urethane)s |
| title_fullStr | Thermally reversible cross-linked poly(ether-urethane)s |
| title_full_unstemmed | Thermally reversible cross-linked poly(ether-urethane)s |
| title_short | Thermally reversible cross-linked poly(ether-urethane)s |
| title_sort | thermally reversible cross linked poly ether urethane s |
| topic | Thermal properties polyurethanes Diels-Alder reaction |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0004377&mi=cd |
| work_keys_str_mv | AT vgaina thermallyreversiblecrosslinkedpolyetherurethanes AT cgaina thermallyreversiblecrosslinkedpolyetherurethanes AT oursache thermallyreversiblecrosslinkedpolyetherurethanes AT cdvarganici thermallyreversiblecrosslinkedpolyetherurethanes |